A concise overview on plasma treatment for application on textile and leather materials

Tudoran, Cristian; Roşu, Marcela‐Corina; Coroș, Maria

doi:10.1002/ppap.202000046

Cited by 32 publications

(15 citation statements)

References 85 publications

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“…A micro-dosing pump introduces the monomer into the reactor at 0.5 µL/s. The thermostatised treatment chamber allows the temperature to be raised during the plasma process, which increases the effectiveness of the deposition process [ 23 , 33 ]. ( Table 2 ).…”

Section: Methodsmentioning

confidence: 99%

“…Gaidau et al also reported the use of cold plasma generated by dielectric barrier discharge (DBD) at atmospheric pressure and room temperature as a promising technique for dry reactivation and physical modification of collagen and keratin-based materials to improve complex characteristics, such as water repellence and flame retardancy [ 22 ]. Finally, a concise overview on plasma treatment for application on textile and leather materials was provided recently by Tudoran et al [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

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Hydrophobic Leather Coating for Footwear Applications by a Low-Pressure Plasma Polymerisation Process

Ruzafa-Silvestre¹,

Blasco²,

López³

et al. 2021

Polymers

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The aim of this work is to develop hydrophobic coatings on leather materials by plasma polymerisation with a low-pressure plasma system using an organosilicon compound, such as hexamethyldisiloxane (HMDSO), as chemical precursor. The hydrophobic coatings obtained by this plasma process were evaluated with different experimental techniques such as Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and standardised tests including colour measurements of the samples, surface coating thickness and water contact angle (WCA) measurements. The results obtained indicated that the monomer had polymerised correctly and completely on the leather surface creating an ultra-thin layer based on polysiloxane. The surface modification produced a water repellent effect on the leather that does not alter the visual appearance and haptic properties. Therefore, the application of the plasma deposition process showed promising results that makes it a more sustainable alternative to conventional functional coatings, thus helping to reduce the use of hazardous chemicals in the finishing process of footwear manufacturing.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydrophobic Leather Coating for Footwear Applications by a Low-Pressure Plasma Polymerisation Process

Ruzafa-Silvestre¹,

Blasco²,

López³

et al. 2021

Polymers

View full text Add to dashboard Cite

show abstract

“…The IVCP may be subject to several distortions due to the measurement uncertainty that may arise from the physics of the phenomena involved in the measurement process. The two most important conditions that have to be taken into account in the IVCP measurement are the time involved in the measurement [14,36,51] and the possible contamination of the surface of the probe [53].…”

Section: Considerations On the Possible Distorsions On The Ivcpmentioning

confidence: 99%

Low Electron Temperature Plasma Diagnosis: Revisiting Langmuir Electrostatic Probes

et al. 2021

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This article describes a method of measurement of the current-to-probe voltage characteristic curve of a Langmuir electrostatic probe immersed in a plasma characterized by a low electron temperature that is only one order of magnitude higher than room temperature. These plasmas are widely used in industrial processes related to surface technology, polymers, cleaning, nanostructures, etc. The measurement method complies with the strict requirements to perform representative plasma diagnosis, particularly in the ion saturation zone when the probe is polarized much more negatively that the potential of the plasma bulk surrounding the probe and allows to diagnose the plasma very quickly and locally, making it possible to better monitor and control the plasma discharge uniformity and time drift. The requirements for the Langmuir probe design, the data acquisition and data treatment are thoroughly explained and their influence on the measurement method is also described. Subsequently, the article describes different diagnostic methods of the magnitudes that characterize the plasma, based on theoretical models of that characteristic curve. Each of these methods is applied to different zones of the measured characteristic curve, the obtained results being quite similar, which guarantees the quality of the measurements. The advantages and disadvantages of each method are discussed. A series of measurements of the plasma density for different plasma conditions shows that the method is sensitive enough that the temperature of the ions needs to be taken into account in the data processing. Finally, a Virtual Instrument is included in the LabView environment that performs the diagnosis process with sufficient speed and precision, which allows the scientist to control the parameters that characterize the plasma to increase the quality and performance of the industrial processes in which the plasma diagnosis is to be used. The Virtual Instrument can be downloaded for free from a link that is included, in order to be easily adapted to the usual devices in a plasma laboratory.

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“…Since then, the range of possible applications of plasma polymers rapidly increased, and plasma polymers are nowadays applied in such diverse areas as microelectronics, automotive, food packaging, textile industries, or in the biomedical field. They can act as separation, protective or barrier layers [ 4 , 5 , 6 , 7 , 8 ] or as films that modify the wettability or biofouling of coated objects [ 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Structure of Plasma (re)Polymerized Polylactic Acid Films Fabricated by Plasma-Assisted Vapour Thermal Deposition

et al. 2021

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Plasma polymer films typically consist of very short fragments of the precursor molecules. That rather limits the applicability of most plasma polymerisation/plasma-enhanced chemical vapour deposition (PECVD) processes in cases where retention of longer molecular structures is desirable. Plasma-assisted vapour thermal deposition (PAVTD) circumvents this limitation by using a classical bulk polymer as a high molecular weight “precursor”. As a model polymer in this study, polylactic acid (PLA) has been used. The resulting PLA-like films were characterised mostly by X-ray photoelectron spectroscopy (XPS) and nuclear magnetic resonance (NMR) spectroscopy. The molecular structure of the films was found to be tunable in a broad range: from the structures very similar to bulk PLA polymer to structures that are more typical for films prepared using PECVD. In all cases, PLA-like groups are at least partially preserved. A simplified model of the PAVTD process chemistry was proposed and found to describe well the observed composition of the films. The structure of the PLA-like films demonstrates the ability of plasma-assisted vapour thermal deposition to bridge the typical gap between the classical and plasma polymers.

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A concise overview on plasma treatment for application on textile and leather materials

Cited by 32 publications

References 85 publications

Hydrophobic Leather Coating for Footwear Applications by a Low-Pressure Plasma Polymerisation Process

Hydrophobic Leather Coating for Footwear Applications by a Low-Pressure Plasma Polymerisation Process

Low Electron Temperature Plasma Diagnosis: Revisiting Langmuir Electrostatic Probes

Structure of Plasma (re)Polymerized Polylactic Acid Films Fabricated by Plasma-Assisted Vapour Thermal Deposition

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